/*有时间限制的线程等待*/
public class Demo13 {
    public static void main(String[] args) throws InterruptedException {
        Thread t=new Thread(()->{
            for(int i=0;i<5;i++){
                System.out.println("hello thread");
                try {
                    Thread.sleep(1000);
                } catch (InterruptedException e) {
                    //throw new RuntimeException(e);
                    break;
                }
            }
        });
        t.start();

        System.out.println("main等待之前");
        t.join(3000);
        System.out.println("main等待之后");
    }
}
